... all kinds of alloy heating wire.Like Pt-Rh,NiCr,NiSi,Constatan wire Tungsten Rhenium Thermocouple Wire shigh accuracy and stability, ... under reducing or inert atmospherAlloy Combination Tolerance Class DiammEnvironment Bare wire +Lead -leadGradeTemp Range (oC)Tungsten-5%Rhenium (W ... (W-25%Re)I0-23000.08-0.5Vacuum,Inert, HydrogenThermocouple wire models: K, J, B, R types.Insulation materials: enamelled ...